Crystal-detector holder



Nov. 23 ,1926. 1*,608Q429 C. E. RILEY v CRYSTAL DETECTOR HOLDER FiledMay 18. 1925 NVENT R ATTORNEY Parente' Nov. 23, 192s. i

CHARLES E. RILEY, OF CDIAIRILESTOTTN',l INDIANA.

C .EYSTAL-DETECTOR HOLDER.

Application ledMay 18, 1925. Serial No. 31,157.

This lIlVeIlllOD relates t a Crystal. d elleC- ings if, Will be geenthat any irregular Shape tor and more SpeClloLlly t0 a l10ld-1` OI l ofcrystal of any size may be deposited in `crystal and has for ltSprlllaly-0bJeCt the the tapering recess and contact with two or.construction of a holder llloluollrlgg" a P lllmore points positivelyassured. This multif l'alty 0f COIIaCt POHI'CS, tWO 01' 111016 b elllgplioity of points 1of contact assures perfect 5o in Contact with theCI'yStiLl at all HHBS electrical conductivity and assures the efl- Ythereby assuring perfect electrical connec` cient operation of theinstrument, A very tions. important feature of my invention is that itAn object of the invention 1s the conStruC- is not necessary to bringabout sensitive ao` :tion of a holder in which contact points are curate,engagement between the point and 55 so arranged that a plurality7 OfpOIltS Wlll the crystal as the gravitational action of the engage thecrystal irrespective of the shape piece of crystal wiIl enable thecrystal to .of the crystal. l come to rest in its most advantageousposi- A feature of my invention is the construction, t

tion of a holder wherein various size pieces It is, of Course, to beunderstood that the 60 of crystal may be accommodated and accuexactconstruction of the plates and the racy of contact assured. shape of thecontact points may be changed With these and other objects in vlew,.thein various ways and therefore I do not deinvention will be betterunderstood from the sire to be limited in any manner except as 2()OllOWlIlg ClGSCI'lplOIl taken ill CODIleCf/OD sei', forth in the Claimshereunto appended, 65 with the accompanying drawings, wherein: Havingthus described my invention, what Fig. l is a plan view. I claim is:

Fg. 2 is a top plan view partly in seCtlO-Il. l. A crystal detector-holder including a Fig. 3 is an enlarged longitudinal secsupportingmember, a plurality of supertional View on the line 3-3 of Fig. 1. posedcontact plates of different areas car- 7o Fig. 4 is an enlargedcross-sectional vleW ried by the supporting member and proon the line4-4 of Fig. l. vided with crystal engaging edges arranged Againreferring to the drawings illusin overlapping relation providing atapered trating one ofthe many constructions of my recess within which acrystal is confined, 3U invention, the numeral 1 designates a base andmeans for connecting the contact plates 75 having attached thereto asupporting plate together in sets. v 2. A plurality of Contact plates 3are plo- 2. A crystal detector holder comprising a vided of differentareas and connected tobase, a plurality of contact plates electrigetherby the bolts l into a right hand set 5 cally connected in sets, saidplates having and a left hand set 6. Each contact plate iS contactpoints arranged in overlapping stag- 8o provided with a plurality ofcontact points gered re1ation, 7 and the POIltS 'Of 011e Plat@ 211'@arranged 3. A crystal detector holder comprising a in staggeredTelai/i011 With the POlltS 0f the base, a plurality of contact plateselectriother plate and also in overlapped relation Gally connected insets7 said plates having 4U so as to provide a valley or a taperingrecess Contact points arranged in overlapping stag- 85 8 between theSets of plates. T0 Complete gered relation, said Contact points formingthe invention I provide the binding posts 9 a tapering recesstherebetween. and l() connected to the sets of plates. In testimonywhereof I aliixmy signature.

From the-foregoing description taken in connection with the accompanyingdraw- CHARLES E. RILEY.

